﻿#tcp编程
#服务器
#创建一个socket
import threading
import socket
import time
def tcplink(sock,addr):
	print('Accept new connection from %s:%s...' % addr)
	sock.send(b"Welcome!")
	while True:
		data = sock.recv(1024)
		time.sleep(1)
		if not data or data.decode('utf-8') == 'exit':
			break
		sock.send(('Hello, %s!' % data.decode('utf-8')).encode('utf-8'))
	sock.close();
	print('Connection from %s:%s closed.' % addr)

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 监听端口:
s.bind(('127.0.0.1', 9999))
s.listen(5)
print('Waiting for connection...')
while True:
    # 接受一个新连接:
    sock, addr = s.accept()
    # 创建新线程来处理TCP连接:
    t = threading.Thread(target=tcplink, args=(sock, addr))
    t.start();


